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Glossary 241 terms · 9 topics · reviewed Nov 2026

The Mushroom Glossary

Every mushroom word, explained in plain English. Type a word, pick it from the list, and land on a quick summary with diagrams, charts and answers to common questions.

Try:Mycelium Psilocin Lion's mane Spore print Amanita muscaria Microdosing

Word of the dayInocybeInocybe is a genus of wild, mushroom-forming fungi often known as fibrecaps or fiber caps. Many species grow alongside tree roots, and…Read it

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4-AcO-DMT4-AcO-DMT is a synthetic psychedelic tryptamine, also known as psilacetin or O-acetylpsilocin. It is chemically related to psilocin and is generally described as a…Psychedelic science
5-HT2A receptor5-HT2A receptor is a protein on cell surfaces that responds to serotonin and helps pass signals into cells. It is found in the brain…Psychedelic science

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King oyster mushroomKing oyster mushroom is a cultivated edible fungus in the genus Pleurotus, known for its thick stem, small-to-medium cap, and mild flavor when raw.…Functional & culinary

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Usona InstituteUsona Institute is a U.S. nonprofit medical research organization focused on studying psychedelic compounds for possible medical uses. It is best known for developing…Psychedelic science

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Zombie fungusZombie fungus is a common name for Ophiocordyceps fungi that infect certain ants and can alter their behavior. The best-known example, Ophiocordyceps unilateralis, grows…Anatomy & biology

Educational content only, not medical or legal advice. Pscilly does not sell psilocybin; outside licensed state programs and approved research it remains a federally controlled substance. Never eat a wild mushroom without expert identification.